diff options
| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2007-09-18 03:22:59 -0400 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-09-19 01:25:34 -0400 |
| commit | ee7a76da1ef5e3e5e0e54e84319e435ea25c267c (patch) | |
| tree | df68b3ffb08df0a243085ddd59a9d4cfb2b01a6d /include/asm-powerpc/pgtable-64k.h | |
| parent | 19a8d97d89442e2bda6245b8a3de2c1fec69a7ad (diff) | |
[POWERPC] Size swapper_pg_dir correctly
David Gibson pointed out that swapper_pg_dir actually need to be
PGD_TABLE_SIZE bytes long not PAGE_SIZE. This actually saves 64k in
the bss for a kernel ppc64_defconfig built with CONFIG_PPC_64K_PAGES.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/pgtable-64k.h')
| -rw-r--r-- | include/asm-powerpc/pgtable-64k.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-powerpc/pgtable-64k.h b/include/asm-powerpc/pgtable-64k.h index 33ae9018fe72..bd54b772fbc6 100644 --- a/include/asm-powerpc/pgtable-64k.h +++ b/include/asm-powerpc/pgtable-64k.h | |||
| @@ -9,9 +9,11 @@ | |||
| 9 | #define PUD_INDEX_SIZE 0 | 9 | #define PUD_INDEX_SIZE 0 |
| 10 | #define PGD_INDEX_SIZE 4 | 10 | #define PGD_INDEX_SIZE 4 |
| 11 | 11 | ||
| 12 | #ifndef __ASSEMBLY__ | ||
| 12 | #define PTE_TABLE_SIZE (sizeof(real_pte_t) << PTE_INDEX_SIZE) | 13 | #define PTE_TABLE_SIZE (sizeof(real_pte_t) << PTE_INDEX_SIZE) |
| 13 | #define PMD_TABLE_SIZE (sizeof(pmd_t) << PMD_INDEX_SIZE) | 14 | #define PMD_TABLE_SIZE (sizeof(pmd_t) << PMD_INDEX_SIZE) |
| 14 | #define PGD_TABLE_SIZE (sizeof(pgd_t) << PGD_INDEX_SIZE) | 15 | #define PGD_TABLE_SIZE (sizeof(pgd_t) << PGD_INDEX_SIZE) |
| 16 | #endif /* __ASSEMBLY__ */ | ||
| 15 | 17 | ||
| 16 | #define PTRS_PER_PTE (1 << PTE_INDEX_SIZE) | 18 | #define PTRS_PER_PTE (1 << PTE_INDEX_SIZE) |
| 17 | #define PTRS_PER_PMD (1 << PMD_INDEX_SIZE) | 19 | #define PTRS_PER_PMD (1 << PMD_INDEX_SIZE) |